Servo Motors: Micro and High Torque
A servo motor moves to a commanded angle using internal feedback. Micro servos are light and small; high-torque servos are stronger for arms, steering, and walking robots.
Working Principle
A servo motor moves to a commanded angle using internal feedback. Micro servos are light and small; high-torque servos are stronger for arms, steering, and walking robots.
Step by Step
- Controller sends a pulse signal.
- Servo electronics compare target and current angle.
- Motor turns until the target angle is reached.
- Gearbox holds position with torque.
Working Simulation
Verified Learning Notes
A hobby servo reads pulse width. Around 1 ms is one side, 1.5 ms is center, and 2 ms is the other side on many servos.
Micro servo can rotate the ultrasonic sensor for scanning. High-torque servos move heavier arms or joints.
Power the servo from a stable 5V supply with common ground. Do not rely on the Nano 5V pin for high servo load.
Sweep 30, 90, and 150 degrees and watch for jitter caused by weak power.
Simulation Challenge
Use the working simulation above before touching wires. Change one value or command at a time, predict the result, then compare it with the diagram and the real module.
- Say what input changed.
- Predict the output.
- Run the simulator.
- Explain why the result is correct for Servo Motors: Micro and High Torque.
Authenticity Checklist
- Does the diagram match Arduino Nano pin names?
- Does every signal have a common ground reference?
- Is the module powered at its correct voltage?
- Does the explanation separate signal, data, power, and mechanical motion?